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A Model of Representing Extension and Shrinking for Spatial Relations
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Journal of Software Engineering and Applications·Volume 04 (2011)·Pages 191–194·Published 18 March 2011·DOI10.4236/jsea.2011.43022
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Abstract
Aiming at region connection calculus (RCC) can only roughly represent spatial topological relations, and have difficulty in representing the distance, direction and so on. Therefore, based on RCC theory, Region Extension and Shrinking Calculus are proposed, and then a formalized metrization method using region as a basic unit is introduced. Based on RESC theory, taking the advantage such as application simplicity and easy realization of gird area method. The experiment proves the spatial relations can be easily obtained by Grid-Region method, and it is an effective way to repre- sent spatial relations.
KeywordsRCCSpatial ExtensionQualitativeTopological
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